Bewch vise



W. H.v BRYAN, JR.

BENCHl vise. APPLICATION FILED OCT 20, 1921.

Patented May 23, 1922.,

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Larmes@ To ZZZ 'whom t may] concerne' "l l B@ einem am i;I WILLIAM n. nime. Jin, la `citizen `ofthe United States, residing` at lresn'or inthe county of Fresno `and Stateoi California, have invented new and useful `lmprovements` in Benclidlises, of

. which thev following` is a specification.

This invention relates to bench vises,` and especially to a foot operated type otvise of the character disclosed in United States `Letbe moved by handto the desired position of adjustment and" then by meansvof a foot o peiated bell crankzlevei and connected? toggle mechanism a slidable pavvl bro-iight into engagement With the ratchet teeth onthe bar to force the movable jaw into clamping position. Y Locking mechanism fbi' the "bell crank` lever'is' also provided and this is so arranged as to be released'by a slightpressure o-i' the foot.` Aside from being much faster than thelscreiv fee-d vises the toot con` trol` leaves bothhands of the operator 'free for other duties. x l

The present'inventi'on has -'for its object to improvel and `simplify the operation and construction yolfbenchvisesA of the character A above mentioned." Chief among the par# y ticnlar improvements' embodied in the pres-` `ent invention is the `provision of inovel means to obtain a iiner adjustment in the operation of the jaw actuatingimechanism, and likewise the" provision of means to ren` der the vise adjustable as toheight.` n the ajccompanying` dravvingsz' u Fig. 1` shows a side elevation of a bench vise` embodyingr `my" invention.

` Fig. 2 shows an end eievationof thesame.

. Fig. shows a detailed sectional view of the loclring` mechanism for the bell crank actuating member.

Fig. 4; shows' a By Way of example l have yillustrated a carpenters bench vise, although the` same mechanism is capable of use in mechanics bench. vises. conventional forme-fi bench is indicated at 10. The frame of the vise comprises an upright tiibiilar post il fitted vtraine hasits side Walls extending rbelow opposite end will engage thewratchetjteeth f detailed sectional View of thelslidable `pawlV 'for actuating" the rack i which carriesthe movable j aw.

. ySpecification of Letters Patent. Pgntd Mfg@ 23, 1922,' iippncatipiiinea schutter ze, 1925i. serial No. 509,976.

at its lower end with a pedestal or base l2 resting on the floor. Telescopically mounted yvithin the tubular member is a shank 13. which lcarries a stationaryjaar"le4 and a guide frame l5. Slidably mounted Within the guide Atrame isy a bar 16; formed with A ratchetiteetli 17 onk its'niider side, and carrying a clampingja'w 18 at its outer end.

As shown in detail in Fig fi, the guide the bar loand receiving` betiveen them avpawl 19 4supported pivotally by means of a trans-` verse pin 20`the latter being iitted inherizontal'slots 2li1ormed in theeirtension side of `the guide member.` This paw] has a 'plurality ofserrations or teeth `22to insnre, instant engagem.vent\ With the ratchet teethy on thel bar 16. Theheel 23` of the pawl is Weighted so that the teeth at the on the bar. "Fined, npon the guideirame in position to cooperate with' the heel portion 23 Wl'ienthe pavvl in its oii'terrnost orf retracted position is `cam or inclinedlng` 24., thewaction' of "Whicli is to lift the heel perf disengagge'the ratchet teeth on the bar 16h Connected alsomtofthepin 42O is ,a toggle link` 25. companion toggle link 26 is connected to the guide frame l5 at the opposite end and the' two `links are pivotaily connected toeach other and to an o'peratingrod 27. This operating rod has a long screiv-thread ed connet-ionmivith a block ,29 `pivotally mounted inv the end of a short arm 30 of a bellcranlr" lever 3l.V `The angle ci* airis of the bellv crank leverisfsupperted pivotally in a bearing 32 iiednpon the tnbiilar post lli,

and thezlong `arm of {the bellcrank4 lever extends ('ioifvnvardly behind .the post l and is iormed at its lower endwlth arrangnlarv pedal prtibnwwhibhl,extends throiigh an opening; in thebase member 12. y y

The pedal ext'nsion is provided Witha toothed vrack` @n.its Ailnder side, and cooperating therewith isla `novel lecking mechanism,` the details ofvvhich are shown in 3. `Pivotally moniitedon the base member 12uand extending through the opening therein an `arlnf ywhich` carries" al pinion 36 invposition tofengaige the teeth on the rack 341A Locking dogs A37` mounted upon the swinging arm are arranged at opposite sidesof the pinion and are held by means ot springs in contact with the bar, toggle links for actuating saidk pawl, a

bell crank lever for spreading said toggle links apart, a pedal eXtensionon said bell crank lever, and locking mechanism for said bell crank lever, comprising .a toothed rack on the pedal extension, a pinion to engage the rack, a plurality of locking dogs for said pinion, engageable alternately with the teeth thereof, a pivotally mounted member carrying said pinion and dogs, a spring for retaining said pivotally mounted member in position where the pinion will engage the teeth of the rack, and means adjacent the `pedal extension for permitting the pivotally mounted member to be depressed whereby to WILLIAM H. BRYAN, JR.

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Patented May 23, 1922.

A. W. CAPS.

RADIATOR.

APPLICATION FILED IUNE 7, 1929.

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